Automatically controlled liquid metering and registering system



Feb. 6, 1951 c. s. HAZARD 2,540,618

AUTOMATICALLY CONTROLLED LIQUID METERING AND REGISTERING SYSTEM Filed Dec. 20, 1945 4 Sheets-Sheet l INVENTOR filial/es 5. Hazard HTTORN EY Feb. 6, 1951 c, s HAZARD 2,549,618

AUTOMATICALLY CONTROLLED LIQUID METERING AND REGISTERING SYSTEM Filed Dec. 20, 1945 4 Sheets-Sheet 2 ATTORNEY Feb. 6, 1951 c. s. HAZARD AUTOMATICALLY CONTROLLED LIQUID METERING AND REGISTERING SYSTEM 4 Sheets-Sheet 15 Filed Dec. 20, 1945 MEG \SQQDW INVENTOR ATTORNEY Feb. 6, 1951 c. s. HAZARD 2,540,618

AUTOMATICALLY CONTROLLED LIQUID METERING AND REGISTERING SYSTEM Filed Dec. 20, 1945 4 Sheets-Sheet 4 INVEN TOR. Kfiar/a J1 Hazard IJTTUR/VEV Patented Feb. 6, 1951 AUTOMATICALLY CONTROLLED LIQUID METERING AND REGISTERING SYSTEM Charles S. Hazard, New York, N. Y., assignor to Neptune Meter Company, a corporation of New Application December 20, 1945, Serial No. 636,242

31 Claims.

This invention relates to dispensing apparatus and more especially to apparatus for measuring and registering and recording measurement of material dispensed.

The invention particularly relates to apparatus for these purposes inwhich a presettable register is connected to means located at a loading or dispensing station for controlling delivery of the material dispensed, this material being delivered through a measuring device or meter for measuring the amount of the material dispensed. The presettable register is eflfective upon completion of the registration to operate the delivery control means to stop delivery of the material being dispensed. An operative connection also is provided between the measuring device or meter and the registers, including the presettable register, to drive these registers in integrating and registering operation concomitantly with the measuring operation of the measuring device.

A system and apparatus for such purposes, which is particularly adapted for selective operation of any of a plurality of billing machines comprising the registers with any of a plurality of loading stations comprising the meters and the delivery control devices associated therewith, is disclosed in the applications of Hazard and Shipman Serial No. 448,644, filed June 26, 1942, and Serial No. 583,916, filed March 21, 1945, now Patent 2,538,243, Jan. 16, 1951, the latter application being a division of the former. The present invention constitutes an improvement in certain aspects of the system and apparatus of said applications. This system and apparatus as disclosed in said applications is particularly adapted for dispensing of fluids in which operation of valves controlling flow of the fluid through the meter is controlled by a presettable auto-stop register. The auto-stop register, as well as a resettable integrating register having associated therewith a printing device, is driven from the meter located at the loading station through an operative connection which efiects step by step movement of the registers concomitantly with the completion of each unit of measurement by the meter of the fluid delivered therethrough.

In the particular embodiment disclosed in said applications the auto-stop register is arranged to actuate contacts in electric circuits which include electrically energizable means, such as solenoids, for effecting opening movement of the valves controlling the flow of the fluid through the meter, these valves being biased to closed position. In these circuits also are connected Ill contacts which are actuated when an element or button located in the billing machine and corresponding to the meter is actuated, these element actuated contacts conditioning the circuits to make effective the operation of the valves under control of the auto-stop. In the system as disclosed each of the billing machines which include the registers has an element or button for each of the plurality of loading stations for selectively connecting any of the meters and valves of the respective loading stations to any of the billing machines by actuation of the proper element or button.

The operative connection from the meter which effects driving operation of the registers comprises means intermittently actuated by the meter at the completion of each unit of measurement and a step by step clutch device for connecting a motor to the registers, the clutch being brought into driving engagement at each actuation of said means intermittently actuated by the meter. Actuation of the selected element or button also is efiective to actuate contacts which condition a circuit for connecting said means intermittently actuated by the meter to said register driving means.

Another contact is actuated by the meter intermittently at the completion of each full unit of measurement of the fluid delivered throughthe meter. This contact takes over control of the solenoid-operated valves and stops flow upon completion of the last full unit of measurement of the fluid delivered. Thus dispensing of the fluid only in full units is insured.

Upon setting of the auto-stop register of a selected billing machine to an amount to be dispensed and actuation of an element or button located in that machine and associated with a given loading station, that is with a given meter and its control valves, the circuits are conditioned for operation as above described so that the autostop will maintain the valve or valves open to efiect delivery of the material through the meter while the auto-stop is returning to its initial or zero position. When the auto-stop register reaches zero position the contacts operated thereby are opened and the solenoids of the fluid control valves would be de-energized to effect closure of the valves under their bias, except that the contact which is intermittently actuated by the meter and which takes over control of the valves from the auto-stop register continues delivery until the completion of the last full unit of measurement as above stated.

The present invention utilizes the members and elements of the system above briefly described. Actuation of any of the elements or buttons of any selected billing machine which are associated respectively with different meters, however, is effective in the apparatus if the applications serial Nos. 448,644 and 583,916 to operate means for preventing change of the setting of the auto-stop of the billing machine on which the selected element or button is located. It is necessary, therefore, in operating the apparatus of these applications first to set the auto-stop and then to actuate the button corresponding to the meter and loading station through which the material is to be dispensed.

Because of the construction of the auto-stop it may be driven in registering operation so as to return to its zero position but its setting may not be changed after the element or button has been actuated. Actuation of the element or button in the apparatus of the applications also is effective to reset the integrating register and the register utilized for making the printed record, means being provided for automatically effecting holding of the actuating element in its actuated position upon completion of the resetting operation to maintain the element actuated contacts which effect conditioning of the circuits in actuated position. In the apparatus of said applications, however, the element or button must be held by hand until the resetting operation is completed.

It is an object of the invention to provide in a system and apparatus for registering and recording the amount of material dispensed as measured by a meter and under control of a presettable register means for preventing change in the setting of the presettable register which permits setting of the presettable register at any time up to the initiation of delivery of material to be dispensed.

A more specific object of the invention is to provide in a system and apparatus operating generally in the manner of that disclosed in said applications Serial Nos. 448,644 and 583,916 means for preventing change in the setting of the auto-stop register, after it has been set to a setting corresponding to the amount of material to be dispensed, which means becomes effective when the valves controlling the flow of fluid are operated to start delivery of the fluid.

A further object of the invention is to condition the operation of the means for preventing change in the setting of the auto-stop register upon the completion of the resetting operation so that it will be effective after the register has been prepared for the integrating registering operation in accordance with the delivery of the material through the meter.

An important object of the invention is to make possible the setting of the auto-stop register at any time before or after the actuation of a selected element or button up to the moment when the delivery of the fluid is started by the loading station operator or by the driver receiving the delivery.

Another object of the invention is to provide means for preventing setting of the auto-stop register when the paper on which the printed record is made, as for issuing a ticket showing the amount dispensed, breaks or runs out at the printing device.

A still further object of the invention is to provide means auxiliary to the systems above generally described for preventing improper operation thereof due to "coasting of the meter, particularly a fluid meter through which fluid. carrying entrained air or other gases is passed, such coasting occurring after the control valves are shut to stop the flow and being caused by compression of entrained air or gas.

In that aspect of the invention which concerns the prevention of change of the setting of the auto-stop register it is a feature thereof that means are provided which are actuated concomitantly with the operation of the valves under the control of the auto-stop register and which are effective for preventing change in the setting by preventing operation of the parts which are operable by hand or otherwise to effect such setting, such prevention becoming effective after all of the requisite parts of the system have functioned to start delivery of the fluid. This preventing means is maintained in operation, however, after the auto-stop has released its control of said valves and of said means and until the system is fully conditioned for stopping delivery. Provision may be made for discontinuing the action of this preventing means upon operation of the device to print the record of the registered amount. Preferably this discontinuance of the preventing means becomes effective only after the auto-stop has released its control of the valves, that is upon return of the autostop to zero position, and after operation of the means above referred to for completing the delivery in full units of measurement.

Upon actuation of an element or button on the machine with which the auto-stop is associated, resetting operation of the integrating register, particularly of the register associated with the printing device, is effected. Means are thereby actuated which make the preventing means effective to prevent change in the setting of the auto-stop register only when, as above described, the auto-stop register is set to a setting correspponding to the amount to be delivered and thereafter the valves are opened by the means under control of the loading station operator or of the driver to effect delivery of the fluid. When the auto-stop register returns to zero and the control which is effected by the meter to insure delivery only in full units has released the valves for final closing, the preventing means then may be released concomitantly with operation of means for printing the record. There after, either before or after resetting operation of the register but before delivery is started, the auto-stop again may be set to position corresponding to a new amount of material to be dispensed and the metering and registering and recording operations repeated.

Thus, the preventing means does not interfere with the setting of the auto-stop register at any time up to the moment when the valves are opened. The auto-stop register may be set at any time prior to the actuation of an element or a button for connecting a given loading station to a selected machine or it may be set after the actuation of such element or button but prior to opening of the valves. Since upon actuation the element or button resetting operation of the integrating and printing registers is effected and since delivery of the fluid cannot occur until the auto-stop register is set, the invention provides flexibility in the order of operation of the devices for conditioning the system for delivery of the fluid while insuring that all of the devices 7 necessary to be operated to obtain delivery are operated so as to secure controlled delivery and registration of the delivered amount regardless of the order of their operation prior to opening of the valves. The apparatus and system of the invention, therefore, are not dependent upon the machine attendant to carry out, in a predetermined order of operations, conditioning of the machine for effecting delivery at a given loading station and registration and recording on a selected machine.

In that aspect of the invention which concerns the breakin or running out of the paper on which the record is printed, the invention provides means cooperating with the paper and connected to the means for preventing change in the setting of the auto-stop register which is effective to bring said means for preventing change in the setting of the auto-stop into operation when the paper fails. The paper when feeding in the normal manner supports and prevents actuation of a member which upon failure of the paper is allowed to fall and to make an operative connection to said preventing means. The auto-stop register, therefore, is prevented from being set until the paper is renewed for feeding in the normal manner through the printing register. I

The coasting operation of the meter above referred to may occur immediately after the valve controlling the delivery is shut, the fluid under pressure compressing the entrained air or gas and causing the fluid to continue to flow through the meter until the entrained air or gas is compressed to the static pressure of the fluid in the pipe leading to the meter. In order to overcome the effect of such coasting operation means are provided which cooperate with the means which is actuated by the meter intermittently at intervals corresponding to the completion of each full unit of measurement of the fluid flowing through the meter so as to be effective, as above mentioned, to complete the delivery of the fluid in full units of measurement. The means for overcoming the effect of coasting" operation acts upon the means controlling the valve so as to stop flow of the fluid and to prevent re-opening of the valve even though "coasting movement of the meter should bring about actuation of said intermittently actuated means which otherwise would re-establish or might re-establish operative connection to the valve for effecting opening movement thereof. In the particular embodiment of the invention in a system similar to that disclosd in said applications Serial Nos. 448,644 and 583,916, the means for overcoming the effect of coasting comprises an auxiliary relay for actuating a contact in the circuit leading to the solenoid for operating the valve which is controlled by said means intermittently actuated by the meter.

Other objects and features of the invention will be understood from-the description of the drawings to follow, in which:

Fig. 1 shows schematically a part of a billing machine and particularly the registers thereof.

Fig. 2 shows schematically in the upper portion thereof the elements or buttons and associated parts which are actuatable to connect the loading stations to two different billing machines, the lower portion of this figure showing the apparatus located at a loading station.

Fig. 3 shows as a modification of the invention certain parts also shown in Fig. l with the electric circuits associated therewith.

Fig. 4 shows the construction of the means for preventing change in the setting of the auto-stop register.

In the lower portion of Fig. 2 the loading station is identified generally by the numeral 1. In Fig. 1 the drive operated under the control of the meter as hereinafter described is shown generally by the numeral 2. This drive 2 is effective to drive the auto-stop register 3 as well as the integrating and printing register and the auxiliary parts identified generally by the numeral 4.

The loading station as shown in Fig. 2 comprises a meter 5 connected in the delivery pipe [0 for fluid to be dispensed and controlled by a valve 1 which may be of the type which is biased to closed position, the valve being operated to open position by energizing the solenoid 9 operatively connected thereto. The meter shaft ll carries a bevel gear [2 driving bevel gears l3, one

of which operates a visual register l4 and the other carried by shaft I5 rotates said shaft and cam I! mounted thereon upon rotation of the shaft II when fluid is delivered through the meter. The cam I'l operates contacts 19 in an electric circuit which also includes contacts 90, Fig. 1, actuated by the auto-stop register 3.

When the contacts I9 and 90 are closed and certain other contacts actuated by the elements or buttons I20 on the billing machines also are closed, the circuit is completed through the wire 20 to the time delay relay 22, Fig. 1. This relay 22 actuates the contact 24 which also is connected to the wire 20. When the contact 24 is closed the circuit is completed also to solenoid 26 which actuates the clutch 28 by actuating lever against the bias of a spring 21 attached thereto. This clutch may be of conventional type driven by continuously operating motor 29 to connect and disconnect the motor to drive shaft 30 and gears 3!. The driven gear 3| is carried on the shaft 32 which also carries a worm 34 arranged to drive the worm gear 35 fastened on the sleeve 31 of the auto-stop register 3.

The auto-stop register may be of conventional type having the units wheel 39, tens wheel and wheels of higher order 4| and 42. The units wheel 39 carries a disc 43 which rotates therewith. The wheels 40, 4| and 42 respectively carry discs 44, 45 and 46 which rotate therewith. The disc 43 has a recess 48 which is so arranged with respect to the units wheel 39 that when said wheel is in zero position the recess 48 receives the roller 49 carried on the horizontally extending arm 5| of a bell crank which has an upwardly extending arm 53. Rollers 55, 51 and 59 respectively are associated with the discs 44, 45, 46 and are carried on a rod 6i fastened at its end in arms 63 and 65. These arms are also connected by the shaft 61 supported in bearings 69. The arms 63 and 65 and the rod 6| and shaft 6'! form a rigid frame which is pivotally movable in the bearings 69 to provide for. simultaneous movement of the roller 55, 51 and 59 into and out of the recesses formed respectively in the dicss 44, 45 and 56,

Fastened to the arms 63 and 65 and extending over upon the horizontal arm 5| of the bell crank 5|, 53 is a bar II. Pivotal movement of the frame which include the arms 63 and 65 caused by rotation of any of the discs 44, 45, 46 moving the corresponding rollers 55, 51 and 59 out of their cooperating recesses also is effective to move the arm 5| downwardly in Fig. 1, that is, to the position shown with the roller 49 cammed out of the recess 48, even though this recess 48 of the disc 43 associated with the units with the roller 49.

wheel 39 is in registering position with said roller 49. The arm I, therefore, is depressed as long as any oi! the wheels 39, 49, 4|, 42 are in a position other than a zero position. Upon the return of the wheels 49, 4i, 42 to zero position the bar II moves upwardly as the rollers 55, 51, 59 enter the recesses. The arm 5I, however, may remain depressed in the position shown in Fig. 1 until the recess 49 comes into register Thereupon the arm 5i will move upwardly as the roller 49 enters the recess 48.

The auto-stop register 3 may be set by operation of the crank I5 fastened on the shaft 19, the shaft 19 being operatively connected to the auto-stop register in a conventional manner which permits the sleeve 31 driving the wheels 39, 49, M, 42 to be rotated by the register drive 2 even though the shaft I9 is held against rotation. On the upper end of the shaft 32 the worm 89 is fastened which drives the worm gear 8I operatively connected to drive shaft 93 of the integrating and printing register 84 in conventional manner. Printing means, the operation of which .is to be described more particularly hereinafter, also is arranged in connection with this register 84.

Adjacent the upwardly extending arm 53 of the bell crank 5|, 53 which is actuated by the units wheel disc 43 of the auto-stop register contacts 99 are arranged to be closed when, as shown in Fig. 1, the arm 5| of the bell crank is depressed by movement of the roller 49 out of the recess 48. This is accomplished by operation of the crank I5 in setting of the auto-stop register. Return of the recess 48 into registering position with the roller 49 permitting the arm 5| to rise unless prevented by bar II opens the contacts 99. From an electrical supply 92 through wire 93 connected to the blade 94 in switchbox 95 and wire 9| connection is made to the contacts 99 of the auto-stop register when the blade 94 engages the contact 99 in said switchbox. By operation of the elements or buttons as hereinafter described the switch blade 94 may be thrown from engagement with the contact 99 to engagement with the contact 91. This blade 94 may be made of spring material so that it may be flexed to throw the blade to and from engagement with the contacts 96 and 91, bending on the ends of pins I49 and I42 in the actuation of the elements or buttons I29 and in resetting of the register 84 as described below.

When the blade 94 is in engagement with the contact 99 the circuit is carried through the auto-stop contacts 99 and wire 98 to contacts 399 which are actuated by the button identified with loading station H on billing machine B. Through wire I99, Fig. 2, connection is made from contacts 399 to contacts 29I and 294 actuated by the button on machine A which is associated with the same loading station #I. From the contacts 294 wire I9I connects to the contacts I9 which are actuated by the cam H as above described. It will be apparent that when the auto-stop register is set to a setting corresponding to an amount of material to be dispensed through the meter 5 and the blade 94 of switch 95 is bent into engagement with the contact 99 and button #I of machine A is pressed to the position shown in Fig. 2 to close the contact 294, the circuit is completed to the register drive 2 whenever the cam I'I closes contacts I9. The construction of the rotating parts within the meter 5 and the ratio of bevel gears I2, l3

are such that the shaft 15 is rotated one revolution ior each unit of measurement of the fluid flowing through the meter 5. An impulse thus is delivered through wire 29 to the register drive 2 once for each unit of measurement by the meter. This impulse actuates the clutch 28 to rotate the shaft 39 and eifect rotation of the autostop register 3 and of the integrating and printing register 94. The time delay relay 22. after a predetermined time for which it is set, opens the contact 24 and deenergizes the relay 29 to disconnect the clutch 28, thus stopping the operation of the registers. The registers, therefore, are operated in step by step manner concomitantly with the operation of the meter through the intervention of the cam I! and contacts l9.

With the button #I of machine A in the actuated position as shown in Fig. 2, connection also is made through lead I93 from the contacts 29l to the hand operated switch I95 from which connection is continued to the solenoid 9. When the circuit is completed from the auto-stop register as just described closing of the hand operated switch I95 by the operator at the loading station or by the driver when he desires to take delivery energizes the solenoid 9 to open the valve 1 for delivering the fluid through the meter. Operation of the switch I95, however, is inefiective to produce delivery unless the autostop register is set and the switch blade 94 is in engagement with the contact 93 and, as well, the

' button #I of either machine A or machine B is pressed.

A lead or wire I I9 corresponding to the lead 98 from the auto-stop register of machine A is shown in Fig. 2 which connects from contacts actuated by the auto-stop register of machine B (not shown) to the contacts 299 actuated by button #I of machine A, these contacts 299 being open when the button #I of machine A is pressed. The contacts 299 are connected to contacts 3M and 394 actuated by button #I of machine B. The contacts 3M and 394 are open when button #I of machine B is in the unactuated position as shown in Fig. 2. The contact 394 is connected to contacts I99 which are operated by the cam H as are the contacts I9. From the contacts I99 through wire I II connection is made to the register drive of machine B operating similarly to register drive 2 of machine A to drive the autostop register and the integrating and printing register of machine B. Connection is also made from contacts 39I to the hand operated switch I and to the solenoid 9 for operation of the valve I of loading station I.

It will be apparent that when a button corresponding to a given loading station, for example loading station #I, is pressed in one machine it is effective to interrupt the circuit leading through contacts actuable by corresponding buttons on the other machines which are connected to the same loading station. Intentional or inadvertent actuation of the button of a machine corresponding to the same loading station which would normally connect said other machine to the loading station will be ineffective to establish such connection either for operation of the register drive of the second machine or the operation of the valve 1 of the loading station to which the first machine is connected. This is accomplished by interrupting the circuit at contacts 296 when button #I of machine A is pressed and at contacts 399 when button #I of machine B is pressed. These contacts, however, are closed when the button is in the unactuated position so that on pressing of the button #I on the other machine the circuits may be established through contacts "I and 204 or "I and 304 as the case may be.

Each of the elements I29 corresponding respectively to loading stations #I, #2, #3 and *4 on each of machine A and B carries a cam bowl I22 which is effective with cams I23 and blocks I24 to (prevent actuation of a second element on the same machine corresponding to a different loading station as shown in Fig. 2. Actuation of element I 20 corresponding to button #I moves the cam bowl into position to prevent pivotal movement of the cams, thus to' prevent the cam bowl carried by a second element I20 from moving between the cams or between the cam and the block I24 into the actuated position as shown for element I20 of button I. Thus the connection of more than one loading station to the same machine is prevented.

By means of latches I25 actuated by solenoids I26 connected in parallel with each other and as a group in series with a motor I30, Fig. 1, between the supply line 92 and ground, the elements I 20 are held in the actuated position'by engagement of the latch by the notch I21 in the element. Resistance of the solenoids is such with respect to the motor winding that the motor I30 is not energized for rotation except when the solenoids are short-circuited which may be accomplished by actuation of the switch blade 94 into engagement with the contact 91 of switch 95, Fig. 1, or by operation by hand of the switch I34 in Fig. l. or by other means hereafter described. Such short-circuiting will de-energize the solenoids I26 and permit the latch I25 to be moved out of engagement with the notch I 21 by the spring I29.

Each element I20 ulpon actuation is adapted to engage member I 33 fastened upon a shaft I 34 arranged for sliding movement in bearing I35. The member I33 and shaft I34 are biased by spring I36 against actuation by the element I20. This spring is effective upon release of the element I20 when the solenoid I26 is de-energized to return the element I20 to its unactuated position. For the element corresponding to loading station I, Fig. 2, this will effect closing of the contact 206 and opening of the contacts 20I and 204, thus opening the circuits to solenoid 9 and relays 22 and 26 to close the valve I and stop the register drive 2.

At its opposite end from the member I33 the shaft I34 carries a bar I38 engaging a pin I40 extending slidably through the wall of the switch box 95 into engagement with the switch blade 94. At the opposite side of the box 95 a second pin I42 extends slidably through the wall of the box into engagement with the blade 94, pin I42 being actuated by cam I44 carried on shaft I32 of motor I30. With the cam I44 in the position shown in Fig. l holding pin I42 inwardly of the switch box 95, actuation of a button, such as button #I of Fig. 2, will press the element I20 against the member I33 to move the rpin I40 inwardly of the switch box 95 and bend the blade 94 upon the end of pin I 42 into engagement with the contact 91. The circuit is then established through the lead 93 from the supply 92 to motor I30 to rotate the motor shaft I32. As the solenoids I26 are short-circuited by such closure of the circuit through motor I30 the latches I25 therefore are inefiective to hold the element in the depressed position and disconnection of the valve I and register 2 would take place as above stated. The button, for example, button #I, however, may be held by hand to energize the motor I36 to rotate the shaft I32 until the register 84 is reset.

This resetting of the register 84 is accomplished by means of a mutilated gear I41 on the motor shaft I32 engaging the gear I46 carried on shaft I45 to rotate gear I49 also carried on shaft I45 to drive through idler pinion I50 and gear I52 the register shaft I54 for the resetting operation of the register 84. Construction and arrangement of the parts is such that rotation of the shaft I32 through 180 will eifect resetting of the register 84, the teeth of the mutilated gear I41 then passing out of engagement with the gear I48. Upon such completion of the rotation through 180 in the direction of the arrow, the cam I44 will pass from the position as shown in Fig. 1 to a position where the pin I42 has just moved from engagement with the larger lobe of the cam to engagement with the smaller lobe thereof. The leaf 94 of the switch then may straighten from its bent position of Fig. 2 so as to be thrown into engagement with the contact, 96. This disconnects the contact 91 and removes the short circuit from the solenoids and stops the motor I30. The actuated element I20 then is retained in actuated position by the latch I25, held by the energized solenoid I26.

The apparatus and system now are conditioned for registering operation of the amount of fluid to be delivered through the meter which may be initiated by operation of the hand operated switch I05 provided the auto-stop register has been set to the predetermined amount of fluid to be delivered. Upon completion of the registration of the predetermined amount, that is, upon return of the auto-stop register 3 to its zero position as the registers are driven by the register drive means 2, the contacts 90 will be opened and the solenoid 9 controlling valve 1 will be de-energized unless it is maintained energized by other means. The register drive 2 also will be stopped because the circuit to this drive is interrupted by the opening of the contacts 90.

For the purpose of effecting delivery of the fluid in full units of measurement, a cam I6 is mounted on shaft I5 with the toe I8 of the cam engaging in its rotation the movable member of contacts I60. These contacts are connected inseries with the solenoid 9 for operating the valve I between the supply line 92 and ground. In this circuit also are connected contacts I63 of relay I65 arranged to be held closed on energization of its solenoid which is connected to ground in parallel with the solenoid 9. When the solenoid 9 is energized the relay I65 is energized and the circuit through the contacts I63 held closed by relay I65 is established except for an interval once in each revolution of the shaft I5, that is, when the toe I8 of the cam I6 engages the movable contact I60 to open these contacts. Thus the circuit through the solenoid 9 is maintained after opening of the contacts 90 by return of the auto-stop'register to zero and until the last unit of fluid measured by the meter has passed through the meter. The cam I6 is arranged on shaft I5 so that contacts I60 are opened precisely upon the completion of said last unit to effect deenergization of the solenoid 9 and closure of the valve 1 under its bias and thus complete the delivery in full units of measurement.

Such final interruption of the circuit to the solenoid 9 also de-energizes the solenoid I65 and opens contacts I63. The relay I65 and the contacts I63 therefore are effective to prevent the circuit; through the contacts I60 being re-established in the event that the shaft I is rotated beyond the precise point of completion of the last unit of measurement by the meter corresponding to the amount set on the auto-stop register. Such "coasting of the meter androtation of the shaft I5 which would move we point of the cam from engagement with the contact I60 and thus effect reclosing of these contacts I60, which may occur because of compression of the air or gas in the fluid, may not only produce a false reading on the register I 4 but would re-open the valve 1 unless the circuit through the contacts I60 to the solenoid 9 is interrupted. This is accomplished by the opening of the contacts I63 when the relay I65 is de-energized simultaneously with the solenoid 9 upon opening of the contacts I60. When, however, the circuit is completed through the auto-stop contacts 90, the switch blade 94 and contact 96 and the element actuated contacts as above described, operation of the hand operated switch I05 in a subsequent dispensing operation, will energize the solenoid I65 simultaneously with the solenoid 9 and the circuit through the contacts I60 will be estabiished but will be opened once in each revolution of the shaft I 5, that is, once for each unit of measurement of the fluid being delivered made by the meter 5.

On completion of the registering and metering operation the auto-stop register, having returned to zero, is effective to close contacts 239, 240 which are connected in a circuit more fully described hereafter to motor I30 to start motor I30. Such energization of motor I30 will short-circuit the solenoids I26 and release the'element I20 which has been actuated for the dispensing operation, that is, in the operation being described the element I20 associated with button #I corresponding to the loading station #I. Rotation of the shaft I32 by the motor I30 rotates the gear I41 from the position to which it was rotated in the resetting operation of the register 84 above described to the position shown in Fig. 1. This rotation brings the teeth of the mutilated gear I41 into engagement with the gear I10 carried on shaft I1I which also carries a mutilated gear I13 and cam I15 to rotate said gear and cam. During such rotation of the shaft IN the teeth of the gear I13 engage the pinion I11 to cause rotation of the shaft I18 to drive feed rollers I82 for feeding the paper to the printing register 84. Rotation of the shaft I1I in the direction of the arrow caused by rotation of the motor I30 in the direction of the arrow, as shown in Fig. 1, moves the cam from the position shown and permits the cam follower I19 carried on arm I80 fastened to the printing hammer I8I to drop from its position at the point of the cam as shown in Fig. 1 to the surface of the cam of less diameter, thus causing the printing hammer I8I to move downwardly and to press the paper upon the printing elements of the register 84. The ratio of the gears 'I41 and I10 is such that shaft HI and cam I15 are rotated one revolution during engagement of these two gears. The mutilated gear I13 has such a number of teeth and is in'such a position on the shaft "I that it starts the feeding movement of rollers I82 after the printing hammer has pressed the paper and been lifted somewhat therefrom by rotation of the cam I15. When the mutilated gear I13 has passed out of engagement with gear I11 the paper is in position ready for printing 12 the registered amount in a subsequent dispensing operation and the portion just printed may be removed showing the record of the amounts dis'-' pensed for the current dispensing operation.

In order to prevent setting of the auto-stop so as to initiate a dispensing operation in the event"? that the paper strip I83 breaks or runs out on the roll I85, means are provided as shown in Fig. 1 for preventing rotation of the shaft 16 by operation of the crank 15. Beneath the edge of the paper I83 is arranged a U-shaped member I81. Intermediate the ends of the U and above the paper is arranged a feeler in the form of a lever I89 pivotally supported at I90 and biased downwardly by spring I9I. This lever has a toe I88 for contact with the paper. The opposite end of the lever I89 projects upwardly and operates the movable contact I93 into engagement with the fixed contact I94 whenever the paper I83 fails to pass between the toe I88 of the lever I89 and the U-shaped member I81. When no paper bridges the span between the ends of the U- shaped member the spring I 9I pulls the lever I89 downwardly to close the contacts I 93, I94. Contact I94 is connected by lead I95 and lead 93 to the supply 92. The contact I93 is connected by lead I96 to an electromagnetic grip I98 the construction of which is shown in Fig. 4 and which surrounds shaft 16 of the auto-stop register. When this electromagnetic grip I98 is energized by closing the contacts I93, I94, it is effective to prevent rotation of the shaft 16. As long as the toe I88 of the lever I89 bears upon the paper and the lever I89 thereby is held against the pull of the spring I9I, the circuit to the electromagnetic grip I98 is open but is completed upon failure of the paper thus to support the toe- I88 of lever I89, thus to prevent setting of the auto-stop register until the paper is is renewed.

In order to prevent change in the setting of the auto-stop register after the dispensing operation has started while permitting this auto-stop register to be set at any time before actual flow of the fluid takes place, the electromagnetic grip I98 also is energizable by means which are under the control of the auto-stop register itself so as to become effective upon opening of the valve 1. This grip, however, also is under control of means which are actuated by the motor I30 and which, when this motor is operated to reset the wheels of the integrating and printing register as above described, condition the circuit to the grip so as to be effective upon opening of the valve 1 to prevent change in the setting of the auto-stop. Upon operation of motor I30 to print the record this means is effective to continue the operation of the electromagnetic grip until the printing is completed and the valve is finally closed. The auto-stop register by virtue of these means of the invention may be set at any time in the preparation of the apparatus for normal carrying out of the dispensing operation prior to the closing of the hand operated switch I05 to effect delivery of the fluid through the meter. Thus the element I20 actuated by a button, for example, button #I, may be actuated to effect resetting operation of the register 84 and the auto-stop register then may be set or this may be accomplished in reverse order.

To effect energization of the electromagnetic grip I98 concomitantly with energization of the solenoid 9 to open the valve 1, a triple contactor relay 2I5 is provided the contacts .220, 22I of which are connected through wire 2 I8 in parallel 13 with the paper controlled contacts I93, I94 between the supply line 92 and the lead I98 connected to the electromagnetic grip. Upon closing of the contacts 220, 22I the electromagnetic grip I98 is energized to prevent rotation of the shaft 16 by the crank 15. Movable contact 220 is mechanically connected to but insulated from movable contact 223 to open and close contacts 223, 224 simultaneously with contacts 220, 22I. Contact 223 is connected by wire 225 to a fixed contact 226 associated with pivoted contact blade 228 which is biased to closed position by the spring 229 and actuated to open position by the toe 230 of a cam 23I mounted on shaft I32 of the motor I80. The pivoted contact blade 228 is connected through the lead 93, Fig. 1, to the supply 92. The relay 2i 5 having armature 2I6 to operate contacts 220, 22I and 223, 224, as well as contacts 233. 234 hereafter referred to, is connected to ground from lead 219, to which contact 224 also is connected. The lead 2 I 9 is connected to supply line 92 through contacts I61 of the relay I65. The movable contact I61 is mechanically connected to the movable contact I63 to move therewith. Thus the circuit is closed to the relay 2I5 when the relay I65 is energized, this condition occurring when valve operating solenoid 9 is enerzed, as above described.

14 ation of the button corresponding to a given loading station have been completed.

In such resetting operation, as above described,

which will rotate the shaft in the toe m of camcorresponding to a given loading station. Thereafter, or at any time prior to actuating of the hand operated contact or switch I05, the autostop register may be set by operation of the crank 15 and the circuit completed to the solenoid 9 upon closing of the hand operated switch I05 as above described. This closing of the switch I05 is the final step for energizing the relay I65, as

- well as the solenoid 9, thereby also to energize the When the solenoid 9 is energized by closing of 4 the auto-stop register operated contacts 90 and completion of the circuit through the blade 94 and contact 96 of switch 95 and contacts of an actuated element I20 and the hand operated contact I05, the relay 2I5 will be energized through contacts I61 and lead 2I9 to close contacts 220,

22I and contacts 223, 224. If, upon such energization of the relay 2| 5 the contacts 226, 228 are closed, the circuit is established from the supply 92 through leads 93 and 225 and contacts 226, 228 and 223, 224 to relay 2 I 5 and thence to ground. This relay then maintains itself energized by holding the contacts 223, 224 closed. The contacts 220, 22I also thus are maintained closed. thereby to maintain the circuit completed from the supply 92 through contacts 220, 22I and wire 2I8 to the electromagnetic grip I98 thus to prevent operation of the crank 15 and change in the setting of the auto-stop register. Energization of the grip I98 will be continued as long as the relay 2 I 5 is energized, that is, until the autostop register has opened contacts 90 upon its return to zero and the contacts I60 also are opened by the cam I6 to deenergize solenoid 9 and relay I65, thus to open contacts I61, at the completion of the last full unit of measurement of the fluid being dispensed and, further, until the contacts 226, 228 are opened.

Opening of contacts 226, 228 is efiected in the printing operation above referred to by bringing the toe 230 of the cam 23I into position in Fig. 1 upon completion of the printing operation. Breaking of the contacts 226, 228 concomitantly with breaking of the circuit controlled by the contact I61 which is actuated by relay I65 after the circuits which are connected to the solenoid 9 and relay I65 have been interrupted by the auto-stop register and cam I6 tie-energizes the relay 2 I 5. When the relay 2 I 5 is de-energized its armature 2I6 is released and the contacts 220, 22I and 223, 224 are opened, thus breaking the circuit to the electromagnetic grip I98 and preventing re-energizing of the relay 2I5 upon reclosing of the contacts 226, 228 until the relay 2I5 again is energized by setting the auto-stop register and resetting of the register 84 by acturelay 2I5 to establish the circuits connected to the contacts 220, 22I and 223, 224 actuated by relay 2I5 and to energize the electromagnetic grip I98 simultaneously with the opening of the valve 1. Up to the time, therefore, that the hand operated switch I05 is closed by the operator at the loading station or by the driver to whom the material is to be delivered, the auto-stop register may be set to any position or changed from one position to another if such change is found necessary for any reason.

In order automatically to open the contacts 226, 228 upon completion of the dispensing operation thereby to condition the circuits for deenergiing the relay 2I5 after the solenoid 9 and the relay I65 are de-energized, in the particular embodiment illustrated in the drawing an auxiliary fixed contact 235 is arranged for contact by the pivoted contact member 228. Contact 235 is connected by wire 231 to contact 239 of the pair of contacts 239, 240. which are opened as shown in Fig. 1 when the auto-stop register is set to an amount to be metered and registered but are closed concomitantly with the opening of the contacts upon return of the auto-stop register to zero. The contact 240 is connected by wires 2 and 242 to the motor I30 through contacts 233, 234, above referred to, the movable contact blade 233 being mechancally connected to contact blades 220 and 223 to move therewith but being insulated therefrom. Thus, if the auto-stop is at zero the circuit may be completed upon closing of th contact 235 from the supply 92 through wire 93, contacts 228, ,235, wire 231, contacts 239, 240, wire 2, contacts 233, 234 and wire 242 to motor I30. This circuit is completed when at the completion of the metering or registering operation the auto-stop reaches zero, the cam 23I being in a position at from that shown in Fig. l as above described. Since the relay 2I5 is energized and contacts 233, 234 closed at this time the motor I30 will be energized upon closing of contacts 239, 240 to rotate cam 23I to the position of 1 to cause the toe 230 of said cam to actuate the contact blade 228 to open the circu t through contact 226 to relay 2I5 and to open the circuit through contact 235 to motor I39. After completion of the last full unit of measurement by operation of cam I6 and contact I60 the relay 2I5 will be de-energized by the opening of contact 226, 228. This 18 will open contacts 233, 234 by virtue of the mechanical connection therebetween and the circuit to the motor, already interrupted by open contacts 228, 235 will remain open during the next resetting operation of motor I30, even though contacts 239, 240 remain closed because the autostop has not yet been set in such subsequent operation.

, Resetting operation of the motor I30 effected by actuation of a selected button to move the blade 94 into engagement with the contact 91 rotates cam 23I from the position shown in Fig. 1 to release the pivoted contact member 228 to close with contacts 226 and 235 under the bias of spring 229. When the auto-stop register is set to a setting corresponding to an amount of fluid to be delivered, thus closing contacts 90, contacts 239, 240 and the circuit to the motor through these contacts will be opened ready to be closed upon return of the auto-stop to zero to complete the circuit to the motor I30 for the printing operation as above described. Upon completion of resetting of the register 84 the cam I44 throws the switch blade 94 to engagement with the contact 96 and the motor I30 will be stopped in the position 180 from that shown in Fig. l, leaving the pivoted contact member 228 in engagement with both the contact 226 and" the contact 235. The solenoid 9 and relays I65 and 2I5, therefore, will be energized during the dispensing operation as above described. Upon return of the auto-stop register to zero, thus closing the circuit to the motor I 30 through contacts 228, 235, contacts 239, 240 and contacts 233, 234 to effect the printing operation and the feeding of the paper as described, the solenoids I26 become short-circuited and de-energized to release the actuated element I20, that is button #I in Fig. 2 corresponding to loading station I. The cam 230, upon being rotated by motor I30 through 180 during this printing operation, again actuates the pivoted contact member 228 to move it from engagement with the contacts 226,and 235, thus opening the circuit through wire 225 to the relay 2 I5. The relay 2I5 becomes de-energized as soon as the relay I65 simultaneously with solenoid 9 is de-energized by opening of contacts I60. The dispensing operation, therefore, is completed with the delivery of the last full unit as determined by the contact I60 actuated by the meter operated cam IS. The circuits thus controlled then are again conditioned for subsequent resetting and dispensing operations.

The relay 2I5 and the contacts 220, 22I and 223, 224, and 233, 234 associated therewith may be located at the loading station or adjacent the billing machine as desired. Preferably these parts are located at the machine as shown in Fig. 1 since they may be arranged adjacent the contacts 226, 228 and the electromagnetic grip I98, thereby shortening the leads connecting these parts, it then being necessary only to carry the lead 2I9 from the machine to the loading station for the concomitant operation of the solenoid 9 and relay I65 and of relay 2I5 as described. Where a plurality of machines are at a remote point, for example at an office some distance from the loading station or stations, the number of leads is thereby reduced and the apparatus associated essentially with each machine is located adjacent the machine with which it is associated where it may be more easily supervised. It is to be understood that a relay similar to the relay 2I5 which is associated with machine l8 Ai'n Fig. 1 may be associated with machine B and connected through lead 2 I9 to the same relay I65 of loading station #I as shown in Fig.2.

Summarizing briefly the sequence of operations which may be carried out in the improved system of the invention:

The machine operator selects the loading sta tion at which the fluid is to be dispensed and operates the button, for example button #I, corresponding to loading station #I on the machine on which the registration is to be made, -for example on machine A. This moves the blade 94 into engagement with the contact 91 as shown in Fig. 1 to energize motor I30. The shaft I32 of motor I30 is rotated to produce resetting operation of the register 84. Such rotation closes the contacts 226, 223, the cam 23I being rotated to move the toe 230 thereof from engagement with the pivoted contact blade 228. Upon rotation of shaft I32 and cam I44 through 180 the switch blade 94 is released from the bent position shown in Fig. 1 in engagement with contact 91 and is thrown 'to engagement with contact 96, thus breaking the circuit to the motor I 30 and stopping rotation of the shaft I32. This puts the register 84 in condition for integrating registering operation when driven by the register drive 2 in step by step operation under control of the contacts I9 which are intermittently actuated by the cam I'I concomitantly with the metering operation of the meter. The element I20 of button #I now is held by the latch I25.

The auto-stop register 3 may have been set to the amount desired to be dispensed prior to any of these steps of the preparatory operation or it now may be set thus to close the contacts 90. The circuits then are all conditioned so that when the hand operated switch I05 is closed at the loading station not only is the solenoid 9 energized to open the valve I but the relay I65 is energized to complete the circuits as above described to energize the electromagnetic grip I98 to prevent thereafter change-in the setting of the auto-stop register until the dispensing operation is completed. Following the completion of the last full unit of measurement of the fluid delivered through the valve 1 as determined by the cam I6 and the contacts I60 and the "anticoasting relay I65, the electromagnetic grip I93 is de-energized upon completion of the operation of the motor I30 to print the record. This printing as well as feeding of the paper are accomplished automatically when the auto-stop reaches zero position to close contacts 239, 240 to energize motor I30 through contacts 233, 234. The cam 23I thus is rotated to the position shown in Fig. 1 to break contacts 226, 228. Breaking of the contacts 226, 228 efiects final de-energizing of :the relay 2I5 and opening of all the contacts 220, 22I; 223, 224; 223, 234 and de-energization of the electromagnetic grip I98, after the final de-energization of the solenoid 9 and closing of valve I to stop delivery. Contacts 228, 235 also are opened to stop motor I30 and the printing and proper feeding of the paper is completed.

If desired, as disclosed in said applications of Hazard and Shipman Serial Nos. 448,644 and 583,916, the arm 63 of the auto-stop register 3 may have associated therewith contacts for controlling a circuit similar to the circuit controlled by the contacts but connected to means for operating a valve controlling gross flow in a branch pipe parallel to pipe II. In such case the gross flow valve may be closed when the tens 17 wheelamialiwheelsofhigherorderhave returned to their nero positions.

Inl'lgSisshownamodiflcationoftheinvention in which certain of the parts, together with the associated circuits and contacts, which operate in the same manner as described in connection with Fig. 1 are diagrammatically represented. In Figs. 1 and 3 like parts are identiiied with the same numeral. The apparatusof Fig. 3 as to certain features operates in the same mannerasdoestheapparatus oiFig. 1 takenin connection with Hg. 2.

with the apparatus of Fig. 8, however, it is unnecessary to hold the button or element I20 in its actuated or pressed position, as with the apparatm or l'igs. l and 2, until the resetting operation is completed in order that thesolenoids I20 which are short-circuited by operation of the motor I50 may become energized upon stopping of the motor I00 by disconnecting the blade 00 from the contact 07, Fig. l. The element or button I20 when it is pressed is eilective in the device of Fig. 3 to close a circuit to the solenoids I20 thus to actuate the latches I25 immediately to hold the element in its pressed podtion until the metering and registering operation is completed.

Upon a button, such as button #I of Fig. 2 to actuate the element I20, movement of the shaft I00 slidably supported in bearing I05 thus produced by the vertical member I03 a ainst the bias of spring I00 is eiiective in the apparatus oi Pig. 3 to close a contact 250, this contact being connected between the supply line 02 through leads 00, 252, and 250 to a contact 255 which is actuated by pin I02. The pin I42 engages and is operated by cam I in the same manner as described in connection with Fig. 1. Thecam I thus is eilective to close the contact 255 when the larger lobe of the cam I00 engages the pin I02. As described in connection with Fig. 1, such engagement occurs in the position shown in Fig. 3 upon completion of the printing operation and is continued through the resetting operation during which the cam is moved through 180 from the position shown in Fig. 3. Upon completion of the resetting operation the pin I02 engages the smaller lobe of the cam I and the contact 255 thereby is opened. Contact 255 is connected through wire 251 to the motor I 00. It will be apparent, therefore, upon actuation of a button or element I20 to close the contact 250, when the cam is in the position shown in Fig. 3, that the motor I00 will be energized to rotate this cam through 180 thereby also to rotate the cam 20I mounted on the shaft I22 of the motor to move the toe 200 of the cam 23I from the position shown in Fig. 3 to close the contacts 235. These contacts 235 in Fig. 3 serve the purpose of both of the contacts 205 and 226 of Fig.1 as will be apparent from the description to follow. The shaft I02 is connected, as in Fig. 1, to the register 00 and to the printing hammer Ill and the paper feed rolls 110 and I02. I

Upon completion of the resetting operation which eil'ects opening of the contacts 255, contacts 200 which also are operated by the cam I through pin I02 and mechanical connection 262 are closed. The contacts 200 are connected from the supply line 02 through leads 00 and 200 and then throughlead 0| to the contact 90 which is operated by the auto-stop register, as described in connection with Fig. 1. Thus the closing of the contact 250 at the end of the resetting operation in the device of Fig. 3 the circuit from the supply 02 through the auto-stop contacts 00 and lead 00, contacts 006, lead I00 and contacts 2" and 200, Fig. 2, and then through leads I00 and IOI respectively to completethe circuits to the hand-operated switch I05 which is operated by the loading station attendant or the driver, as stated in connection with P188. 1 and 2 and to the register drive 2, Fig. 1.

It will be apparent, therefore, that in the apparatus of Fig. 3 the sequence of operations thus far described, which may be carried out by themachine operator, from the moment of actuation of button or element I 20 until the circuit to the solenoid 0 and tovthe relay I05 is conditioned upon setting of the auto-stop register for completion by the closing of the switch I05 is the same as that described in connection with Figs. 1 and 2. The resetting operation, however, is effected by closing of the element actuated contacts 250 in series with the cam actuated contacts 255, whereas in Fig. 1 the blade is actuated directly by the mechanical operative connection from the element I20 in cooperation with the mechanical actuation of the pin I02 by the cam I. The arrangement of Fig. 3 may be advantageous under certain conditions where an electrical connection between the portion oi the billing machine which includes the buttons or elements I20 and the parts actuated thereby may be more or less distant from the means including the motor I30 i'or eflecting resetting operation of the register. Thus the leads 252 and 250 may be carried between the two locations referred to without the necessity of more or less complicated mechanical connections which might be required it the apparatus were arranged as shown in Fig. 1. Where direct connection may be made, however, apparatus such as that of Fig. 1 may be utilized.

In Fig. 3 is shown a set of contacts 265 which are actuated by cam 20I at the same time as the contacts 205 by a mechanical connection therebetween, the contacts 205 being opened simultaneously with the opening of the contacts 205 when the toe 200 of the cam 20I is in the position shown in Fig. 3. When this cam 20I is rotated from the position shown through in the resetting operation, as above described, the contacts 205 are closed and the circuit is thereby established from the supply line 92 through leads 03, 201, contacts 205, and lead 268 to the group of solenoids I26 which are connected in parallel with each other and thence to ground. The solenoids I20 of the group are arranged in mechanical relation to the elements I20 in the same manner. as shown in Fig. 2. Thus, upon initiation of the resetting operation which moves the cam 2" from the position shown, the-solenoids I26 imme diately will be energized by the closing of the contacts 205. The actuated element I 20, therefore, will'be'held in its actuated or pressed position because the latch I25 associated therewith will be moved pivotally by its solenoid I26 so that the toe of the latch will engage the notch I21 ofthe element I20. As the contacts 265 will remain closed until the completion of the printing operation by rotation of the cam 20I again to the position shown in Fig. 3 in the manner described in connection with Fig. 1,,the solenoids I26 remain energized throughout the resetting operation and throughout the dispensing operation which may immediately iollow the resetting operation. Thus it becomes unnecessary in the apparatus of Fig.

position that to maintain the motor I00 energised 39 until completion of the resetting operation, so that thereafter the solenoid I26 and latch I25 will maintain contacts 20I and 204 closed and contact 206 open. Upon completion of the printing operation, however, which effects opening of the contacts 265, Fig. 3, the solenoids I26 will be deenergized and the pressed button will be released to its initial position for reactuatio in a subsequent dispensing and registering operation.

As with the apparatus described in connection with Figs. 1 and 2, the apparatus of Fig. 3 is provided with circuits connected to and for controlling the operation of the electromagnetic grip I98 both by the paper controlled contacts I93, I94 and the contacts 220, 22I of the relay 2I5. The contacts 220, 22I are closed upon energization of the relay 2| 5'which also closes holding contacts 223, 224 to establish the circuit from the supply line 92 through lead 93, contacts 235, leads 231 and 225 and the holding contacts 223, 224 connected to relay 2I5 and thence to ground. The relay 2I5 when it has become energized will remain energized as long as the contacts 235 and the contacts 223, 224 remain closed. The relay 2I5 is energized by the closing of the contacts I61 which are connected between the supply line 92 and the wire 2I9, which also is connected to the contact 224, the contacts I61 being closed by energization of the relay I65 in the same manner as shown and described in connection with Figs. 1 and 2. The operation of the relay I65, contacts I63 and I6! and of the valve operating solenoid 9 will be apparent without detailed description because their operation is identical with that described in connection with Figs. 1 and 2.

In both embodiments the relay 2| 5 first becomes energized when the contact I 91 is closed after the auto-stop register has been set to close the contacts 90 and upon actuation of the handoperated switch I05. The relay 2I5 remains energized to maintain the electromagnetic grip energized to prevent alteration of the setting of the auto-stop register until the auto-stop register has returned to zero and, thereafter, the relay I65 has been deenergized at the completion of a full unit of measurement by the meter by the opening of the contacts I60 actuated by the cam I6. The relay 2I5 then becomes deenergized by openin of contacts I6! unless the contacts 235 are still closed.

When the auto-stop register returns to zero, as described in connection with Fig. 1, the contacts 239 and 240 will be closed. As the contacts 235, Fig. 3, are closed at this time the circuit will be established from the supply line 92 through lead 93, contacts 235, lead 231 to the contacts 239, 240 and thence through lead 24I, contacts 233, 234, leads 242 and 251 to the m0- to I30. The motor I30 thus energized will rotate the shaft I32 to effect printing operation at the register 84 as described in connection with Fig. 1. Such rotation again will bring the toe 230 of the cam 23I into the position shown in Fig. 3 to open the contacts 235 thus to break the circuit to the motor I30. Such interruption of the circuit through the contacts 235 also will break the circuit to the relay 2I5 after the contacts I51 have been opened by deenergization of the relay I65 at the completion of the last full unit of measurement under control of the cam I6 as above stated. Deenergization of the solenoid 2I5 in addition to opening the holding contacts 223, 224 and the contacts 220, 22I which will deenergize the electromagnetic grip I98 also has not yet been set from its zero position, contacts 239, 240 thus being closed, when the contacts 235 are closed during the resetting opera 1011.

It thus will be apparent that upon pressing of a button such as button #I corresponding to meter or loading station #I, resetting operation of the register 84 is eifected and the button is maintained in its actuated position. Before such actuation of a button to actuate the element I20 or at any time thereafter prior to closing the switch I05 the auto-stop register may be set to close the contacts 90. By these two operations the system is completely conditioned so that when the hand-operated switch I 05 at the loading station is closed, the dispensing operation at once will be initiated automatically by the opening of the valve 1. Simultaneously the .anti-coasting relay I65 will be brought into operation, the relay I65 also being effective through its contact I61 to energize the relay 2 I5 thereby to energize the electromagnetic grip I96 and to condition the circuits as described so that upon return of the auto-stop register to zero to close the contacts 239, 240 the printing operation will be carried out at the register 84 and thereafter automatically the solenoid 9 and the relays I65 and 2I5 will be deenergized upon completion of the last full unit of measurement by the meter corresponding to the amount registered by the register. Upon completion of the printing operation the button or element I20 which has been pressed is released. The apparatus thereupon is conditioned for a subsequent dispensing operation which may be initiated by actuation of the same or a different button or element I20. Such actuation serves first to reset the register 84 and thereafter automatically to carry out the several steps of the dispensing operation which have been described for delivery of an amount of fluid measured to correspond to the setting of the auto-stop register.

In erted in the lead 98 which connects from the auto-stop actuated contacts to the contacts 308, Fig. 2, as above described, are contacts 210 of an emergency stop device. The movable blade of the contacts 210 is mechanically connected to the movable blade of contacts 212, the fixed elements of these contacts being so arranged with respect to the respective movable blades that contacts 210 are closed when the contacts 212 are open. The contacts 210 are biased to the closed position. contacts 212 being biased to opened position. Actuation by hand of these mechanically connected contacts against their bias by means of the knob 214, that is, by lifting the knob 214 in Fig. 3, is effective to break the circuit normally closed by the setting of the auto-stop register, actuation of a selected button or element I20 and closure at the loading station of the hand-operated switch I05. The emergency stop may be so located that such interruption of the circuit through the lead 90 may be accomplished by the machine operator, or one or more emergency stops in this lead 98 may be located at other points convenient for operation in the case of emergency. It will be apparent as contacts 210 are in series with contacts 90 that opening of the contacts 210 by operation of the emergency stop will deenergize the solenoid 9 and the relay I65 with the consequent closure of the valve 1 upon completion of the current unit of measurement being measured by the meter under control of contact 1" in the manner above described. The circuit through the lead 20 to the register drive 2, Fig.-1, also will be interrupted, so that registration by the register 54 and by the auto-stop register 3 will be stopped.

In order to effect printing of the record of the amount registered at the moment of emergency stopping of the registers, the contact 212 is connected in parallel with the contacts 239 and 240 which, as above described, in the normal operation of the auto-stop register are closed upon return of the auto-stop register to zero. Upon closing the contacts 212 by operation of the emergency stop, the circuit will be established through the closed contacts 235 and throu h leads 231, 225, 215, contacts 212, lead 241, contacts 233 and 234, leads 242 and 251 to the motor 130. The circuit thus established energizes the motor 130 to rotate the cam 231 to the position shown in Fig. 3 from the position it assumed in resetting of the register 84. The contacts 235 thus are opened by the toe of cam 230-and the circuit to the relay 215 is interrupted after completion of the current unit of measurement, thus opening the holding contacts 223, 224 which have maintained the relay 215 energized as long as the contacts 235 are closed. Deenergization of the relay 215 also opens the contacts 233, 234. The contacts 255 also are opened when the cam 231 is rotated to the position shown in Fig. 3. The solenoids 125, therefore, are deenergized to release the actuated element 120. The auto-stop register lock 198 likewise is deenergized by the opening of the contacts 220, 221 in the manner above described. Thus the circuits are conditioned as above described for resetting operation of the resettable register and a subsequent dispensing operation upon actuation of a button or element 120 and setting of the auto-stop register. In Fig. 4 is shown in longitudinal section one embodiment of the electromagnetic grip 155 which is constructed to cooperate with shaft of the autostop regi ter 3 to prevent rotation of this shaft and change in the setting of the auto-stop register after the element 120 identified with the selected loading station in a selected billing machine is actuated.

The shaft 15 passes through bearings formed in the bosses 501 and 503 provided respectively in the end closing plate 505 and in the end wall 505 of the casing 501 of the device. In this embodiment the casing 501 is of cylindrical form with the end wall 505 integral therewith. To this casing the end clo ing plate 505 is fastened by screws 509 entering the periphery of this plate through the cylinder wall of ca ing 501. Within the inner bore of the casing 501 is a spool 511 fastened to the casing by screws 512. This spool carries the coil 513 of a solenoid the terminals 515 of which pass out through the wall of the casing 501 through insulating bushings 515. The terminals 515 are connected respectively to ground and to the contacts 133, 194 and contacts 220, 221 as shown in Figs. 1 and 3.

In holes drilled in bosses 511 formed on the end plate 505 a plurality of pins 515' are rigidly fastened and extend generally parallel to the axis of the shaft 15. Preferably, these pins are formed of non-magnetic material. Co-axially with the shaft 15 an armature 513 of annular cylindrical form is supported on the pins 513,

22 this armature being provided with holes extending therein parallel to the axis of the armature which fit slidably on the pins 518 to provide for movement of the armature in the direction parallel to the axis of the shaft 15. At the right hand end of the armature in Fig. 4 the armature is provided with teeth 521 adapted to cooperate as a clutch with the teeth 523 of a cooperating clutch member 525 fitted upon the shaft 15 and keyed thereto by the key 525. The clutch membe;- 525 may be of cylindrical form and cup shaped to receive a compression spring 521 which bears against the end wall of the cup and against the end of the armature 519 to bias this armature toward the left in Fig. 4 tothe position shown where the teeth 521 and 523 are disengaged.

It will be noted that the armature 515 is of such length and is so positioned relative to the central plane of the solenoid coil 513 that upon energiz'ation of this coil effected by closing of the contacts 153, 154 or 220, 221 the armature 519 will be drawn toward the right substantially to a position symmetrical with respect to the central plane of the solenoid coil 513. In such movement toward the right the teeth 521 and 523 of the clutch members will be engaged with each other. Since the casing 501 of the electromagnetic grip 195 is fixed against rotation, it will be apparent that upon energization of the solenoid 513 the shaft 15 will be held against rotation if operation thereof by the handle 15 fastened thereto is attempted. Thus, when a selector element of a given billing machine with which the auto-stop 3 is associated is pressed to select the loading station and meter to be connected to the given billing machine and s registers, the auto-stop having been concomitantly set to the amount to be dispensed, thereafter and until the auto-stop has returned to zero thereby releasing the actuated element 120 the setting of the auto-stop may not be changed by the operation of the handle 15. The device shown in Fig. 4 may be variously designed to cooperate with the auto-stop register and the means actuated by element 120 to produce the result of preventing change in the setting of the auto-stop register during the operation thereof in a dispensing operation of the apparatus.

Other variations from the illustrated and described embodiments of the invention may be made within the scope thereof. Instead of electrical circuits, contacts and devices, other means may be used for securing operation of the registers as determined by operation of the measuring device and for actuating the valve or valves under control of the presettable register, subject to the controls and devices which constitute the features of invention which provide for automatic registering, metering and recording operation upon selection of the meter or loading station by actuation on a selected machine of a selected button corresponding to such meter or loading station and which also provide for setting of the presettable register at any time prior to the actual starting of the delivery and for insuring thereafter proper operation automatically to complete the delivery in full units of measurement in accordance with the selected setting of said presettable register. The invention, therefore. is not intended to be limited in its scope except as defined in the appended claims.

I claim:

1. In a dispensing, apparatus the combination. with a measuring devioe,;means forcontrol'ling j delivery of material through said measuring device, means settable from an initial position to a position corresponding to an amount of material to be measured, and means operatively connecting said settable means to said delivery controlling means to effect delivery of said material through said device in an amount corresponding to the setting of said settable means, of means operatively connected to said settable means and actuated upon operation of said delivery controlling means to deliver said material for preventing change in the setting of said settable means while said settable means controls said delivery controlling means to deliver said amount of said material to be measured.

2. In a dispensing apparatus the combination with a resettable register a fluid meter, means for controlling delivery of fluid through said meter, a presettable register settable from an intial position to a position corresponding to the amount of fluid to be measured, and means operatively connecting said presettable register to sa d fluid control means to control said fluid control means to effect delivery of fluid through said meter in an amount corresponding to the setting of said presettable register, of means operatively connected to and actuatable to condition said connecting means so as to be effective to establish said control upon setting of said presettable register and upon initial actuation thereof operatively connected to said resettable register to reset said resettable register for registering operation, means operatively connected to said resettable register and effective when said resettable register is reset for registering operation and operatively connected to and effective upon operation of said fluid control means establishing flow of fluid through said fluid meter and operatively connected to said presettable re ister for preventing change in the setting of said presettable register while said presettable register operates to control delivery of the amount of fluid through said meter for which said presettable register is set, and means operatively connected to and effective after said presettable register completes control of said fluid control means to complete delivery of said fluid for releasing said means for preventing alteration of the setting of said presettable register to permit renewed setting thereof.

3. In a fluid dispensing apparatus the combination with a fluid meter, a valve for controlling flow of fluid through said meter, a presettable register, and means actuated by said presettable register and operatively connected to said valve to control operation thereof while said presettable register is operated from a position of setting to an initial position to determine the amount of fluid measured through said meter, of means operatively connectible to said presettable register for preventing change in the setting thereof during said metering operation, means operatively connected to said presettable register and to said preventing means and effective to establish and to maintain said preventive connection of said preventing means to said presettable register throughout said metering operation, and means operatively connected to said presettable register and effective upon completion of the control of said metering operation by said presettable register for disconnecting said preventing means from said presettable register to permit renewed setting thereof.

4. In a fluid dispensing apparatus the combination with a resettable register, a fluid meter, a valve for controllingflow oi fluid through said meter, an auto-stop register, and means controlled by said auto-stop register operatively connectible to said valve to control operation thereof for metering operation of said meter, of an element operatively connected to said resettable register for effecting resetting operation thereof, means responsive to actuation of said element and to resetting operation of said resettable register and operatively connected to said autostop register so as to be effective upon com-. pletion of said resetting operation to establish said operative connection from said auto-stop registerto saidvalveupon setting of said auto-stop register to a position corresponding to an amount to be measured, means operatively connectible to said auto-stop register for preventing alteration of the setting thereof, and means operatively connected to said preventing means and controlled by said auto-stop register concomitantly with its control of said valve and effective to establish and to maintain said connection of said preventing means to said auto-stop register throughout said control of said valve by said auto-stop register during the registering and metering operation.

5. In a fluid dispensing apparatus the combination as defined in claim 4 which includes means actuated by said meter and operatively connected to and effective for rendering said means operatively connected to said preventing means and controlled by said auto-stop register concomitantly with its control of the operation of said valve ineffective to maintain said operative connection of said preventing means to said auto-stop register upon completion of metering operation of said meter, means operatively connected to said auto-stop register and operated upon completion of the registering operation to record the registration of said resettable register, and means actuated upon operation of said recording means and operatively connected to and effective to disconnect said preventing means from said auto-stop register.

6. In a fluid dispensing apparatus the combination as defined in claim 4 which comprises means controlled by said meter and operatively connected to and effective during the operation of said auto-stop register to control said valve so as to maintain the flow of fluid through said meter except at intervals occurring at the completion of each unit of measurement by said meter, said means being effective to close said valve after completion of said .control by said auto-stop register so as to complete the delivery of said metered fluid in full units of measurement, said preventing means and said means operatively connected to said preventing means and controlled by said auto-stop register concomitantly with its control of said valve being so connected to said means controlled by said meter that said connection of said preventing means to said auto-stop register is maintained until completion of the last unit of measurement by said meter and thereupon is discontinued.

7. In a fluid dispensing apparatus the combination with a presettable register, a fluid meter, a valve for controlling flow of fluid through said meter, of means controlled by said register and means controlled by said meter both operatively connected to said valve to control operation thereof, said register-controlled means being capable of maintaining said valve in open position in all setting positions of said register other than its initial position, said meter-controlled means normally during the metering operation being capable of maintaining said valve in open position except at intervals occurring only at the completion of each unit of measurement by said meter, means eflective at said intervals for closing said valve whenever said register is in its initial setting position, whereby closure of said valve is etlected only at the completion of a full unit of measurement oi the fluid being dispensed, and means controlled by said register and by said meter concomitantly with their control of said valve for preventing alteration of the setting of said presettable register after initiation of its control of said valve.

8. In a fluid dispensing apparatus, the combination as defined in claim 7 which comprises a resettable register, and means actuated upon resetting operation of said resettable register and operatively connected to and effective to condition said preventing means so as to initiate such prevention concomitantly with operation of said valve to start delivery of fluid to said meter.

9. In a fluid dispensing apparatus the combination as defined in claim 7 which comprises means responsive to operation of said means controlled by said presettable register and of said means controlled by said meter and effective upon completion of the registering and metering operations for releasing said preventing means to permit subsequent setting of said presettable register.

10. In a fluid dispensing apparatus, the combination as defined in claim 7 which comprises a resettable register, means actuated upon resetting operation 01' said register and operatively connected to said preventing means to make said means elfective for preventing alteration of the setting of said presettable register, means operable to record the registration of said resettable register, and means actuated upon operation of said means operable to record said registration for releasing said preventing means to permit subsequent setting of said presettable register. 11. In a fluid dispensing apparatus, the combination with a resettable register, a fluid meter, a valve for controlling flow of fluid through said meter, and an auto-stop register operatively connected to said valve to control operation thereof for metering operation of said meter, of means for effecting resetting operation of said resettable register, means operatively connectible to said auto-stop register for preventing alteration of the setting thereof, means operatively connected to said preventing means and controlled by said auto-stop register concomitantly with its control of said valve for efiecting said operative connection of said preventing means to said autostop register, said three means being operatively interconnected so that upon operation of said means for eilecting resetting of said resettable register and upon setting thereafter of said autostop register said preventing means is made effective to prevent alteration of said setting of said auto-stop.

12. In a fluid dispensing apparatus, the combination with a resettable register, a fluid meter, a valve for controlling flow of fluid through said meter, and an auto-stop register operatively connected to said valve to control operation thereof for metering operation of said meter, of a motor connected to said resettable register for eil'ecting resetting rotation of said register, electrically energizable locking means operatively connected to said auto-stop register for locking said auto-stop register against alteration of its setting, electric control means actuated by said motor upon resetting operation thereof and connected to said locking means to energize said locking means to lock said auto-stop against alteration of its setting, said connection being conditioned by means controlled by said autostop register concomitantly with its control of said valve to establish and maintain said connection when said auto-stop register is in a position of setting other than zero and to remove said conditioning upon return of said auto-stop register to zero, and means actuated by said autostop register upon return thereof to zero for operating said motor to actuate said electric control means to deenergize saidlocking means upon completion of flow of fluid through said valve.

13. In a dispensing apparatus, the combination with a recording register, means for feeding paper to said recording register for printing the record of the registration thereon, a measuring device, means for controlling delivery of material through said measuring device, means settable from an initial position to a position corresponding to an amount of material to be measured, and means. operatively connecting said settable means to said delivery control means to effect delivery of said material through said measuring device in an amount corresponding to the setting of said settable means, of means operatively connected to said settable means and operable for preventing alteration of the setting of said settable means, and means operatively connected to said preventing means and engaged by the paper as it is fed to said recording register and actuated upon failure of such engagement to operate said preventing means to prevent setting of said settable means.

, 14. In a dispensing apparatus, the combination with a recording register, means for feeding paper to said recording register for printing the record of registration thereon, a fluid meter, a valve for controlling delivery of fluid through said meter, and an auto-stop register operatively connected to said valve to control said valve to deliver said fluid in amount determined by the setting of said auto-stop register, of means operable to lock said auto-stop register to prevent alteration of the setting thereof, and means operatively connected to said locking means arranged for engagement by the paper as it is fed to said recording register and actuated upon failure of such engagement to effect operation of said locking means to prevent alteration of the setting of said auto-stop register.

15. In a dispensing apparatus the combination as defined in claim 14 in which said locking means comprises electric means energizable to effect locking operation of said locking means, said means engaged by the paper being operatively connected to electric control means connected in circuit with-said locking means and effective to energize said locking means upon failure of said engagement of said paper engaging means by said paper.

16. In a fluid dispensing apparatus, the combination with a presettable register, a fluid meter, and a valve for controlling flow of fluid through said meter, of means controlled by said register and means controlled by said meter both operatively connected to said valve to control operation thereof, said register controlled means being capable of maintaining said valve in open position in all setting positions of said register other than its initial position, said meter controlled means normally during metering operation being capable of maintaining said valve in open position except at intervals occurring only at the completion of each unit of measurement by said meter, means effective at said intervals for closing said valve whenever said register is in its initial setting position, whereby closure of said valve to stop flow of said fluid is effected only at the completion of a full unit of measurement of the fluid being dispensed, and means responsive to said meter controlled means and effective upon said closure of said valve and upon completion of the last unit of measurement by said meter for preventing said meter controlled means from again maintaining said valve open until said presettable register again is set to a position other i than said initial position.

17. In a dispensing apparatus the combination with a measuring device, means for controlling delivery of material through said measuring device, and means settable from an initial position to a position corresponding to an amount of material to be measured, of means controlled by said settable means and means controlled by said measuring device both operatively connected to said means for controlling delivery of material through said measuring device to control operation thereof, said means controlled by said settable means being effective to maintain delivery in all positions of setting other than said initial position, said means controlled by said measuring device normally during measuring operation being capable of maintaining said delivery except at intervals occurring at the completion of each unit of measurement by said measuring device, means efiective at said interval for stopping said delivery whenever said settable means is in said initial position, and means thereupon effective and connected to said means controlled by said measuring device to prevent said means controlled by said measuring device from operating to efiect delivery while said settable means is in said initial position.

18. In a dispensing apparatus the combination with a measuring device, means for controlling delivery of material through said measuring device, and means settable from an initial position to a position corresponding to the amount of material to be measured, of means for operatively connecting said settable means to said delivery controlling means to effect delivery of said material through said measuring device in an amount corresponding to the setting of said setta-ble means, means operatively connected to and actuatable to condition said connecting means so as to establish said operative connection of said settable means to said delivery controlling means upon setting of said settable means, and means responsive to actuation of said actuatable means and effective independently of the setting of said settable means for maintaining said actuatable means actuated so as to condition said connecting means to establish said operative connection of said settable means to said delivery control means in all positions of said settable means other than its initial position.

19. In a fluid dispensing apparatus the combination with a fluid meter, a valve for controlling flow of fluid through said meter, and a presettable register, of means actuated by said presettable register and operatively connectible to said valve to control operation thereof while said presettable register is operated from a position of setting to an initial position to determine the amount of fluid measured through said meter, an element actuatable to establish said operative connection from said means actuated by said presettable register to said valve, and means actuated by said element upon such actuation thereof and operatively connected thereto to maintain said element in its actuated position thereby to maintain said operative connection throughout the operation of said presettable register from said position of setting to said initial position and operatively connected to said means actuated by said presettable register and effective in said initial position to release said element to interrupt said operative connection.

20. In a fluid dispensing apparatus the combination with a resettable register, a fluid meter, a valve for controlling flow of fluid through said meter, and an auto-stop register, of means controlled by said auto-stop register operatively connectible to said valve to control operation thereof to deliver fluid to said meter for metering thereof. an element operatively connected to said resettable register and actuatable to effect resetting operation of said register, means responsive to actuation of said element and to resetting operation of said register and operatively connected to said auto-stop register so as to be effective upon completion of said resetting operation for establishing said operative connection from said autostop register to said valve upon setting of said auto-stop register from its initial position to a position corresponding to an amount to be measured, and means responsive to actuation of said element to reset said resettable register and effective for maintaining said element in its actuated position to maintain said operative connection from said auto-stop register to said valve while said auto-stop register maintains its control of said valve during registering and metering operations.

21. In a fluid dispensing apparatus the combination as defined in claim 20 which comprises means actuated by and effective upon return of said auto-stop register to its initial position for releasing said element from its actuated position so as to disestablish said operative connection from said auto-stop register to said valve and to stop delivery of said fluid to said meter, and means actuated by said auto-stop register and effective upon release of said element for conditioning said element and said means responsive to actuation thereof for subsequent resetting operation of said resettable register and reestablishment of said operative connection from said auto-stop register to said valve in a subsequent dispensing operation.

22. In a fluid dispensing apparatus the combination with a resettable register, a fluid meter, a valve for controlling flow of fluid through said meter, and an auto-stop register, of means for resetting said resettable register, means controlled by said auto-stop register operatively connectible to said valve to control operation thereof to deliver fluid to said meter for metering thereof, an element operatively connected to and actuatable to eifect operation of said means for resetting said resettable registenmeans responsive to actuation of said element and to resetting operation of said register and operatively connected to said auto-stop register so as to be eiiective upon completion of said resetting operation for establishing said operative connection from said auto-stop register to said valve upon setting of said auto-stop register from its initial position to a position corresponding to an amount to be measured, means responsive to actuation of said gamer-s 29 element to resetsaidresettable register and disctive for maintaining said element in its actuated position so as to maintain said operative connection from said auto-stop register to said valve while said auto-stop register maintains its control 0! said valve during registering and metering operations, means actuated by and effective upon return of said auto-stop register to its initial position for releasing said element, and meansactuated by said auto-stop register and efi'ective' ,hpon such release of said element for condition- "ing said means for resetting said resettable register for subsequent resetting operation thereof.

23. In a dispensing apparatus, the combination with a measuring device, means for con trolling delivery of material through said measuring device, a presettable register, a resettabie register, means operatively connecting said registers to said measuring device for registering operation thereof concomitantly with measuring operation of said measuring device, and means for recording the registrations of said registers, of means controlled by said presettable register operatively connectible to said delivery controlling means to control operation thereof to elect delivery of said material through said measuring device in amount corresponding to the setting of said presettable register from an initial position to a selected position of setting,

means energizable to effect resetting operation A 0! said resettable register, means operatively connected to and actuatable to energize said energizable means to effect resettingoperation of said register and operatively connected. to said re ister controlled means concomitantly to establish said operative connection from said presettable register to said delivery controlling means, means operable to eiIect recording operation of said recording means, means actuated by and effective upon return of said presettable register to its initial position and operatively connected to said means operable to eflect recording operation and means'for'drivingsaidregisters; to register the. anrmmt of material jofmeansfor resetting said resettable register, a first circuit connectible to said means for resetting said resettable register, means in said circuit actuated by said resetting means in the resetting operation of said register for d'eenergizing said circuit to complete the resetting operation of said resettable register, an element actuatable to energize said first circuit to effect connection thereof to a valve for controlling fiow of fluid through said meter, an auto-stop register operatively connected to said valve to control operation thereof to deliver the amount of fiuidporresponding to the setting of ,saidauto-stop register, means operatively connecting said meter and said registers for eiiecting registering operation thereof corresponding to metering operation of said meter, of

of said recording means to eflect operation therea of, and means actuated by said means operable to efiect said recording operation and effective upon completion of said operation'of said recording means for conditioning said means energizable to eiIect resetting of said register for operation thereof upon subsequent actuation of said actuatable means.

24. In a dispensing apparatus the combination with a resettable register, and means for eiiecting registering operation of said register corresponding to the amount of material dispensed,.of means operatively connected to said resettable. register:

and operable to reset said register froma position of registering to an initlal position for'renewed registering operation thereof, means operatively connected to and actuatable to effect operation of said means operable to reset said resettable register and operatively connected to and efiective upon such actuation to produce operation of said means for effecting registering operation of said register, means operatively connected to and effective upon actuation of said actuatable means formaintaining said actuatable means actuated during said resetting and registering operations and means actuated by said means operable to reset said register and eflective upon completion of said registering operation for conditioning said actuatable means and said means operable to reset said register for resetting of said register upon subsequent actuation of said actuatable means.

25. In a dispensing apparatus the combination with a resettable register, an auto-stop register,

a. motor operatively connected to said resettable register for effecting resetting: operation thereof,

a first circuit connected to said motorand having therein apair of contacts in series with each other, a given one of said contacts being actuat able to 010m position to initiate the conditioning of the apparatus for the dispensing operation, means actuated by said motor for initially holding the other of said contacts closed and effective to open said. other contact upon completion of the resetting operation to stop said motor, a second circuit connectedto said motor having: a

contact therein which is actuated to.closed:position by said. auto-stop register whemsaid autostop register is inits zero position and. to open.

position upon setting of said auto-stop register to a position of setting to correspond to the amount of fluid to be said second circuit also having thereina second contact in series with said auto-stop actuated contact, means actuated by said. motor inresetting: operationof said register foriclosing .saidsecond contact in said second circuit,.said second circuit also. having. a thirdlcontact. in .series .withs'saidzauto-stop actuated. contact and saidlsecondcontact; means operatively connected to said auto-stop register and effective when said auto-stop: register is in a position of setting other than its'zero position for closing said third contact and effective when said auto stop re ister is in its zero position for opening said third contact, whereby said motor is operated from the position to whichitis rotated in the resetting operation to restore it to a position. to. resume resetting operation. when. said;

auto-stop register is restored to itsinitial position, means actuated by said motor for opening said second contact in said second circuit upon completion of said restoring movement of said motor to stop said restoringmovement of said motor, and means actuated by said motor to open said first contact and to close said other contact in said first circuit upon completion of said restoring movement'oi saidmotor and to 31 condition said first circuit for reactuation of said first contact to effect resetting operation of said register.

27. In a dispensing apparatus the combination with a measuring device. means for controlling delivery of material through said measuring device, and means settable from an initial position to a position corresponding to the amount of material to be measured, of means for operatively connecting said settable means to said delivery control means to effect when said connection is established the delivery of said material through said measuring device in an amount corresponding to the setting of said settable means, means operatively connected to and actuatable to condition said connecting means so as to establish said operative connection of said settable means to said delivery controlling means upon settin 01 said settable means, means responsive to actuation of said actuatable means and effective independently of the setting of said settable means for maintaining said actuatable means actuated so as to condition said connecting means to establish said operative connection thereof to said delivery control means in all positions of said settable means other than its initial position, and means cooperating with said last three defined means and operable at will to establish and to disestablish said operative connection of said settable means to said delivery control means.

28. In a dispensing apparatus the combination as defined in claim 27 in which said means operable at will when operated to disestablish said operative connection also is effective to deactuate said means actuatable to condition said operative connecting means.

29. In a fluid dispensing apparatus the combination with a resettable register, a fluid meter, means operatively connecting said register to said meter for registering operation of said register concomitantly with operation of said meter, a valve for controlling flow of fluid through said meter, an auto-stop register, and means controlled by said auto-stop register operatively connectible to said valve to control operation thereof for metering operation of said meter, of an ele' ment operatively connected. to said resettable register and actuatable to effect resetting operation of said register, and means responsiveto actuation of said element and to resetting operation of said register and operatively connected to said means controlled by said auto-stop register and to said means connecting said resettable resister to said meter and effective upon completion of said resetting operation to establish said operative connection from said auto-stop register to said valve for flow of fiuid through said meter and to effect said registering operation of said meter upon setting of said auto-stop register to a position corresponding to an amount to be measured, said operative connection from said auto-stop register to said valve including means operable at will to effect disconnection of said auto-stop register from said valve to shut said valve and stop delivery of said fluid.

30. In a fluid dispensing apparatus the combination as defined in claim 29 which comprises means actuated upon operation of said means operable at will for recording the amount registered by said registers.

31. In a fluid dispensing apparatus the combination as defined in claim 29 which comprises means actuated upon operation of said means operable at will and operatively connected to said element and said register to condition said ele ment and said registers for subsequent resetting and registering operation upon subsequent actuation of said element and setting of said auto-stop register.

CHARLES S. HAZARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,607,899 Long Nov. 23, 1926 1,876,512 Pfening et al Sept. 6, 1932 2,250,326 Carroll July 21, 1945 

